PSF Generation Information

Name: ( close this window )
Enter your name in this field.

Email Address: ( close this window )
Enter your email address into this field. This will allow us to contact you when your job has completed execution.

Random Seed: ( close this window )
(integer; 1 - 2147483561)
This is the random seed that will be passed to the ray generator. This allows the generator to create a thoroughly random and statistically appropriate sampling of rays. If you're trying to recreate a previous sampling, please enter the seed that was used for that run. This seed will be stored in the header of the generated data files for future reference.

Coordinate System: ( close this window )

Theta & Phi:
Theta
(arcminutes; 0 - 120)
A single number specifying theta. Please note that, for values less than 1 arcminute, dmcoords returns a value in arcseconds. This needs to be converted to arcminutes.
Phi
(degrees; 0 - 360)
A single number specifying phi.

Spectral/Limit Specification: ( close this window )
Spectral specification of the PSF to be simulated.

Possible Specifications:

Energy & Density
Energy
(keV; 0.2 - 10)
Up to 10 numbers, seperated by spaces, specifying the energies for which you wish to simulate. Each energy is simulated separately. Note: you may ignore the `Browse' button.
Density
(rays/mm2; 0.0001 - 10)
This determines the density of rays that will be generated at the entrance aperture. The number of rays that arrive at the focal plane are determined by the HRMA effective area at the input energies. This option is useful when assembling a composite spectrum from mono-energetic simulations.
Spectrum & Exposure Time
Spectrum
(ascii file)
Description: This is a file (on your computer) that will be uploaded to our servers. This file must contain a definition of the spectrum at the entrance aperture of the HRMA for which you would like a PSF to be simulated.
The easiest way to create this file is to follow the instructions given in the Preparing to Run ChaRT thread, which explain how to use the chart_spectrum.sl script to produce a spectrum with the correct units.
Format: This is a simple ASCII file consisting of two columns separated by spaces or tabs. The first column is the energy (in keV) at the center of the bin and other column is the flux (in photons/cm2/sec) of the bin.
Exposure Time
(ksec; 0 - 100)
This determines for how long the simulation will run. This requires an input spectrum with an absolute flux at each energy.


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